[121421] in North American Network Operators' Group
Re: New netblock Geolocate wrong (Google)
daemon@ATHENA.MIT.EDU (Christopher Morrow)
Mon Jan 18 21:13:15 2010
In-Reply-To: <F1BB4428-FDF9-49C8-BCF4-AC53495679FF@cs.columbia.edu>
Date: Mon, 18 Jan 2010 21:11:08 -0500
From: Christopher Morrow <morrowc.lists@gmail.com>
To: Steven Bellovin <smb@cs.columbia.edu>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Mon, Jan 18, 2010 at 8:38 PM, Steven Bellovin <smb@cs.columbia.edu> wrot=
e:
>
> On Jan 18, 2010, at 8:22 PM, Warren Kumari wrote:
>
>> Something that I have often wondered is how folks would feel about publi=
shing some sort of geo information in reverse DNS (something like LOC recor=
ds, with whatever precision you like) -- this would allow the folks that ge=
o stuff to automagically provide the best answer, and because you control t=
he record, you can specify whatever resolution / precision you like. Based =
upon the sorry state of existing reverse, I'm suspecting that there is no p=
oint....
>
> I don't think that that works. =A0Apart from the problem that you allude =
to -- people not bothering to
> set it up in the first place -- IP geolocation is often used for certain =
forms of access control and
> policy enforcement. =A0For example: "Regular Season Local Live Blackout: =
All live, regular season
Sure, but I don't think that warren meant s sole signal here... having
a hint is nice :)
> games available via MLB.TV, MLB.com At Bat 2009 and certain other MLB.com=
subscription
> services are subject to local blackouts. Such live games will be blacked =
out in each applicable
> Club's home television territory, regardless of whether that Club is play=
ing at home or away."
> (http://www.mlb.com/mediacenter/). =A0EBay has apparently used IP geoloca=
tion (poorly) to control
> access to certain auctions for items that are illegal in certain jurisdic=
tions or that cannot be
> exported.
this describes any use of geo-location for ips though, in most cases
it's probably not half bad, but with determined 'attackers' there's
very little that can protect your spotify-music from non-swedish
folks, for instance.
Speaking of geoloc fail:
<http://forum.boxee.tv/showthread.php?t=3D5682>
(vpn your boxee traffic to a location more suitable to your watching desire=
s)
(I think the users of geoloc in these cases understand they have a
95-98% success rate, and are willing to take the hit on the folks who
take an effort to avoid them.)
-Chris
>
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0--Steve Bellovin, http://www.cs.columbia.e=
du/~smb
>
>
>
>
>
>
>
